Automatic stop mechanism for wire-mills.



No. 7|4.l20. Patented Nov. 18, I902.

H. H. WHITE.

AUTOMATIC STOP MECHANISM FOR WIRE MILLS.

(Application filed Sept. 2, 1902.)

(No Model.)

THE NORRIS PEYERS co PHOTO-LYNQ. wxsmnawn. n c.

UNrrsn STATES ATENT @rrrcs.

HARRY H. WHITE, OF READING, PENNSYLVANIA, ASSIGNOR TO THE CARPENTERSTEEL COMPANY, INCORPORATED, OF READING, PENN- SYLVANIA.

AUTOMATIC STOP MECHANISM FOR WIRE-MILLS.

SPECIFICATION forming part of Letters Patent No. 714,120, dated November18, 1902.

Application filed September 2,1902. Serial No, 121,848. (No model.)

To all whom, it may concern.-

Beit known that I, HARRY H. WHITE, acitizen of United States of America,and a resident of Reading, in the county of Berks and State ofPennsylvania, have invented certain new and useful Improvements inAutomatic Stop Mechanism for Wire-Mills, of which the following is aspecification.

My invention relates to wire-rollin g apparatus; and it consists in animproved mechanism for automatically stopping the rolls in case of thewire, which is being fed thereto from the delivery-reel, becomingsnarled or its free movement in any way obstructed, so as to put anundue strain thereon, tending to break it or otherwise interfere withthe proper operation of the apparatus.

The invention is fully described in connection with the accompanyingdrawings, and the novel features are specifically pointed out in theclaims.

Figure 1 is a side elevation of a portion of a wire-rolling apparatushaving my improvements applied thereto in preferred form. Fig. 2 is aplan view of the same. Fig. 3 illustrates a modification.

In the drawings, and 11 represent the rolls between which the feed-wireis drawn and reduced. 12 is the housing in which they are mounted, asusual; 13, the suitably-supported bed-plate therefor, in which ismounted the driving-shaft 15 for the rolls. This driving-shaft isprovided with tight and loose pulleys 16 and 17, and a belt-shiftinglever 18, suitably guided in the bed-plate 13, is movable in a lineparallel with the rolls by means of a handle 19 to start or stop therolls. The delivery or feed reel 20, from which the wire is fed to therolls, is rotatably mounted, as usual, on a reel-stand spindle 21, whichrises vertically from a base 22, resting upon the floor, and the reducedwire is taken from the rolls upon a suitable reel 23, as usual.

To provide for automatically moving the lever 18 to shift the belt tothe loose pulley in case the wire from any cause'fails to feed properlyfrom the reel to the rolls, I employ an operating device therefor andmeans for directly actuating the same from the reelstand, which latteris movable toward the rolls in case of an undue strain upon the wire,

such as occurs when it fails to feed properly from the reel. Thisdevice, as indicated in the preferred construction shown in Fig. 1,consists merely of a wedge-shaped operatingplate 24, located inaguideway in the rollcarrying frame, which guideway extends at rightangles to the shifting-lev'etnlS below the same across its path. Toprovide for engaging the lever, so as to move the latter as describedwhen the operating-wedge 24 is forced inward across the lever-path, Iprovide the lever with a depending pin 26, with which the wedging edge27 of the operatingplate 24 contacts as the latter is pressed inward tothe position indicated in Fig. 1, moving the lever at right angles tothe wedgeplate movement to shift the belt and stop the rolls, and at thesame time preventing a return of the lever until the wedge-plate iswithdrawn to its normal position.

The inward movement of the wedge-plate directly and positively followsany movement of the reel-stand produced by undue tension on thefeed-wire, as already described and as indicated by the dotted lines andarrow in in Fig. 1, owing to its direct connection with the stand bymeans of a rigid rod 28, secured at its opposite ends to the wedge-plateand stand, respectively. This connecting-rod, as shown, is pivotallyengaged with the wedgeplate and stand, respectively, as indicated at 29and 30, so as to permit of its disengagement and swinging out of the waywhen desired.

In the modification indicated in Fig. 3 a bell-crank 31, suitablypivoted at 32, is employed instead of the wedge-plate 24, one arm 33 ofsaid crank being arranged to engage the lever-pin 26 and the other beingconnected to one'end of the connecting-rod 34, the opposite end of whichis secured to the spindle of the reel-stand, the movement of whichlatter automatically operates the beltshifting lever, as in the case ofthe preferred construction already described.

What I claim is 1. The combination with a wire-rolling mechanism, astop-lever therefor and a feedreel mounted on a movable stand, of ashifting device for said lever and a rigid connection between saiddevice and the stand whereby the movement of the latter under unduestrain upon the feeding-wire directly.

between said operating-wedge and the stand whereby the movement of thelatter under undue strain causes the automatic shifting of said lever tostop the rolls substantially as set forth.

Signed at Reading, Pennsylvania, this 28th day of August, 1902.

HARRY H. WHITE.

Witnessesv D. M. STEWART, W. G. STEWART.

